Projects

2016

Impacts of Prairie Pothole Hydrology on Field-Scale Losses of Nitrogen and Dissolved Phosphorus

Investigators: Steven Hall, Amy Kaleita, Michelle Soupir

Improving the Capacity to Detect Load Reductions

Investigators: Michael Castellano, Sotirios Archontoulis, Bill Crumpton, Matthew Helmers, Chris Jones, Fernando Miguez, Keith Schilling

Land Tenure and Nutrient Management Practices: Identifying Economic Barriers and Incentives for Landowners and Tenants to Meet Growing Soil and Water Conservation Needs

Investigators: Wendong Zhang, Alejandro Plastina

Phosphorus Contributions from Eroding Iowa Stream Banks

Investigators: Peter Moore, Thomas Isenhart, John Thomas, Keith Schilling, Calvin Wolter, John Kovar, Richard Schultz, Jason Palmer

Potential Monomethylmercury Production in Bioreactors and Wetlands Intercepting Elevated Nitrate Loads in Iowa

Investigators: William Crumpton, Michelle Soupir, Casey Judge

Woodchip Bioreactors for Improved Water Quality

Investigators: Michelle Soupir, Natasha Hoover, Thomas Moorman, Thomas Isenhart

2015

Conservation Practices Inventory for Select Iowa HUC 12 Watersheds

Investigators: Robin McNeely, Josh Obrecht, Amy Logan, Calvin Wolter, Adam Schnieders

Cover Crops Influence Nutrient Cycling, Yield and Diseases of Corn and Soybean

Investigators: Alison Robertson, Leonor Leandro, Andrew Lenssen, Tom Kaspar, Tom Moorman

Evaluation of Stacked Conservation Practices on Phosphorus and Sediment Loss

Investigators: Richard Cruse, Daryl Herzmann, Brian Gelder, Amy Kaleita, Robin McNeely, Amy Logan, Thomas Isenhart, Calvin Wolter

Identifying and Quantifying Nutrient Reduction Benefits of Restored Oxbows

Investigators: Keith Schiling, Nathan Young, Christopher Jones, Keegan Kult, Karen Wilke

Impacts of Cover Crops on Phosphorus and Nitrogen Loss with Surface Runoff

Investigators: Antonio Mallarino, Matthew Helmers, Richard Cruse, John Sawyer, Dan Jaynes

Linking Nutrient Reduction Practices with Biomass Energy: Quantifying Thermal Energy Demand and Supply Capacity for Representative Farms in Eastern Iowa

Investigators: Laura Jackson, Kamyar Enshayan

Quantification of Nutrient Reduction Practices Benefits from the Hillslope to the Watershed Scale

Investigators: Antonio Arenas, Keith Schilling, Larry Weber

Quantifying Temporal and Spatial Variability in NO3-N Leaching Across Iowa

Investigators: Sotirios Archontoulis, Matthew Helmers, Michael Castellano, Peter Kyveryga, Adam Kiel, Roger Wolf

Reducing Nutrient Losses While Increasing Farm Profit Through Precision Conservation

Investigators: Andy VanLoocke, Emily Heaton, Dave Muth, Lisa Schulte Moore, Sotirios Archontoulis, Ingrid Gronstal Anderson

Scientific and Technological Tools to Implement Iowa Nutrient Reduction Strategy

Investigators: Doug Schnoebelen, Larry Weber, Adam Ward

Utilizing Beef Stocker Cattle to Enhance the Value of Cover Crops

Investigators: Mahdi Al-Kaisi, David Kwaw-Mensah

Water Quality Performance of Prairie Strips

Investigators: Matthew Helmers, Todd Sutphin, Anthony Seeman

Woodchip Bioreactors for Improved Water Quality

Investigators: Michelle Soupir, Natasha Hoover, Tom Moorman, Thomas Isenhart

2014

Developing Remote Sensing Protocols for Inventory of Nutrient Management Practices

Investigators: Brian Gelder, Sarah Porter, Amy Kaleita, Calvin Wolter, Richard Cruse, Thomas Isenhart, Mark Tomer, Peter Wolter, David James

Developing Remote Sensing Protocols for Inventory of Permanent Vegetative Practices

Investigators: James Giglierano, Amy Logan, Sarah Porter, David James, Thomas Isenhart

Drainage Water Quality Impacts of Current Future Agricultural Management Practices

Investigators: Matthew Helmers, Michelle Soupir, Antonio Mallarino, Carl Pederson

Measuring the Effectiveness of Stacked Nutrient Reduction Practices

Investigators: Keith Schilling, Wren Almitra, Doug Schnoebelen

Modeling of Nitrate Loads and Concentrations in the Raccoon River

Investigators: Gabriele Villarini, Christopher Anderson, Christopher Jones, Keith Schilling

Nutrient Trading in Iowa: A Pilot Study in the Catfish Creek Watershed

Investigators: Larry Weber, Chad Drake

Phosphorus Loss from Ephemeral Gully Formation and Sediment Transport

Investigators: Richard M. Cruse, Eric Hurley, Antonio Mallarino, Matthew Helmers

Prairie Seed Mixes for Contour Buffer Strips: On-Farm Demonstration and Workshops

Investigators: Daryl Smith

Scientific and Technological Tools to Implement Iowa Nutrient Reduction Strategy

Investigators: Doug Schnoebelen, Larry Weber, Adam Ward

Stream Nitrate Trends Affected by Farming Practices in the Walnut Creek Watershed

Investigators: David Peters, Dan Jaynes

2013

Bioreactor Research and Assessment of Woodchip Tile Denitrification Bioreactors: Optimal Design/Performance and Experimental Bioreactor Installation and Study

Investigators: Michelle Soupir, Roger Wolf

Distribution, Transport, and Biogeochemical Transformations of Agriculturally Derived Nitrogen and Phosphorus in Cedar River Watershed

Investigators: Mohammad Iqbal

Establishing Pragmatically Dynamic Program for Extending Water Quality BMP Financial Information: Farmer Tools for Iowa Nutrient Reduction Strategy

Investigators: John Tyndall

Establishment and Monitoring of Saturated Buffers within High–Priority HUC–12 Watersheds

Investigators: Dan Jaynes, Thomas Isenhart

Impacts of Cover Crops on Phosphorus and Nitrogen Loss with Surface Runoff

Investigators: Antonio Mallarino, Richard M. Cruse, Matthew Helmers, John Sawyer, Dan Jaynes

Investigating Causes of Corn Yield Decreases Following Cereal Rye Winter Cover Crop

Investigators: Tom Kaspar, Tom Moorman, Alison Robertson, Andrew Lenssen

Iowa Institute of Hydraulic Research (IIHR) ‐ Hydroscience and Engineering Work Plan

Investigators: Doug Schnoebelen, Larry Weber, Adam Ward

Nonpoint Source Nitrogen and Phosphorous Loads at Implementation Scale: Direct Agricultural Nutrient Loads to Surface Waters in Relation to Land Use and Management

Investigators: William Crumpton, Matthew Helmers, Keith Schilling, Mark Tomer, Antonio Mallarino

Phosphorus Transport in Iowa Streams: Importance of Stream Bed and Bank Erosion

Investigators: Thomas Isenhart, John Kovar, Keith Schilling, Richard Schultz, Michael Thompson, Mark Tomer

Social-Economic Research Work Plan

Investigators: Cathy Kling, Lois Wright Morton, J. Gordon Arbuckle, Chad Ingels

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